Two homeless men found a backpack in the trash, thinking there was something of value in it. Instead, what they discovered and their actions that followed potentially saved lives in Elizabeth, New Jersey.

Elizabeth Mayor Christian Bollwage said five pipe bombs were found in the bag around 8:30 p.m. Sunday near the Elizabeth train station.

Authorities say the two men immediately dropped the bag and walked around the corner to police headquarters. Police then informed the Union County Bomb Squad.

"One of those devices was being cut in order to disarm it and, as you all heard, the explosion occurred," Bollwage said. "The other devices, I don't know what the FBI and State Police are doing at this moment, but they are trying to remove them in a secure way so they can preserve them for evidence."